The Congress has said the matter of declassification of files relater to Netaji Subhash Chandra Bose should not be politicised. Party spokesperson Anand Sharma said, instead of waiting for January, the government should have started the process of declassification immediately. Replying to a query, Mr Sharma said, there was a reason not to declassify the files by the successive government's and one should not read between the lines.